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Finding the Fourth Proportional to 2,376.68, 3,565.92 and 915.92

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Solution

The fourth proportional to 2,376.68, 3,565.92 and 915.92 is: 1,374.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.68 : 3,565.92 = 915.92 : x
  2. Step 2: Convert to fraction form
    2,376.68/3,565.92 = 915.92/x
  3. Step 3: Cross multiply
    2,376.68x = 3,565.92 × 915.92
  4. Step 4: Simplify right side
    2,376.68x = 3,266,097.45
  5. Step 5: Solve for x
    x = 3,266,097.45/2,376.68
  6. Step 6: Final answer
    x = 1,374.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.